How can we improve the OneDrive mobile app on iOS?

True Backup & Sync of Photos (original and edited one)

If I take a picture and it is stored in Photos > Camera Roll and then I edit it in SnapSeed and store it as a second file in Photos > Camera Roll I would expect both photos to sync to OneDrive like they do with every other cloud platform (Google Photos, Prime Photos, etc.). But OneDrive only backs up one file and not both even though they have different file names. This renders OneDrive as an unuseful backup and sync tool. Many instances where we would have multiple versions of the same file. Very upsetting as my students and I are paying Microsoft for 1 TB of storage for backup and it doesn’t work. Then to be told after lengthy troubleshooting with support that this is by design. Unbelievable.